A Dellnitz, A Kleine, W Rödder - Journal of business economics, 2018 - Springer
The CCR model by Charnes et al.(Eur J Oper Res 2: 429–444, 1978) together with the BCC
model by Banker et al.(Manag Sci 30: 1078–1091, 1984) are the most popular approaches …